Long press on home uses the Intent that was originally used to start the task.
On Tue, May 17, 2011 at 10:12 AM, Eric <[email protected]> wrote: > > > On May 16, 11:33 pm, Dianne Hackborn <[email protected]> wrote: > > As I said in another thread, if you want to switch apps you need to use > the > > exact same Intent that you used originally to start the task. If you > don't, > > then you are launching a new activity instance for that new Intent. > > > > If you want to match what a home screen launches, then you need > ACTION_MAIN, > > CATEGORY_LAUNCHER. > > I'm doing some more testing, and things are starting to make more > sense with respect to switching tasks. My problem was that my IDE is > launching my application in a slightly different way than the LAUNCHER > icon does, and I think that's why I'm seeing duplicate Activities on > my Task stack, instead of the task resuming. > > So, what you're saying is, if I want to have multiple tasks within my > app, and I want to switch back to the MAIN app task programmatically > from my app, I need to supply the Intent I use with ACTION_MAIN and > CATEGORY_LAUNCHER flags so that the 'switch' back is to the same task > that the app launcher started? > > What if I want to make sure the same Task is resume in 3 different > cases: > > - app LAUNCHER > - long-press HOME Task switcher > - programmatically within my app > > It seems I can match my programmatic Task switcher with ACTION_MAIN > and CATEGORY_LAUNCHER to satisfy the LAUNCHER case, but what about the > case where the app is resumed via long-press HOME Task swticher? My > experience is that you get a completely different Intent there, along > the lines of: > > > > 05-17 12:30:43.740: INFO/ActivityManager(101): Starting: Intent > { flg=0x10100000 cmp=com.mycompany.android.myapp/.MyMainActivity } > from pid 101 > 05-17 12:30:43.800: INFO/activities.MyMainActivity(2264): onRestart > (10) -- Intent { flg=0x800000 > cmp=com.mycompany.android.myap/.MyMainActivity } > > I'm worried in this case the Intent doesn't match with the LAUNCHER, > and you'd end up with a separate Task? In fact, this would affect all > apps that use both MAIN LAUNCHER icon, and long-press HOME Task > switcher. Exactly which item(s) on the Intent are checked when > determining which Task should be resumed (flags, action, category, > component, etc)? > > -- > You received this message because you are subscribed to the Google > Groups "Android Developers" group. > To post to this group, send email to [email protected] > To unsubscribe from this group, send email to > [email protected] > For more options, visit this group at > http://groups.google.com/group/android-developers?hl=en > -- Dianne Hackborn Android framework engineer [email protected] Note: please don't send private questions to me, as I don't have time to provide private support, and so won't reply to such e-mails. All such questions should be posted on public forums, where I and others can see and answer them. -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
